R 4.2.0 soft-deprecated the download method of wininet, which was commonly used as a method of downloading files and installing packages in R on Windows platforms. This RStudio release provides support for UTF-8 native encoding on Windows, including listing file paths and directories containing non-ASCII UTF-8 characters that may be common for international users working in other languages and locales. Builds of R >= 4.2.0 on Windows use UCRT to support this use of UTF-8. R 4.2.0 will use UTF-8 as the native encoding on recent Windows systems, such as Windows 10, Windows Server 2016, or later. In this release, the Plots Pane is fully compatible with R >= 4.2.0. Older versions of RStudio displayed a warning that R graphics engine version 15 is not supported by this version of RStudio and plots opened in a separate window rather than in the Plots pane. The graphics engine, which is used to render plots in the RStudio Plots pane, has been upgraded to graphics engine version 15 in R 4.2.0. The latest RStudio release supports the most significant of these changes. The development build of R, which will be released as R 4.2.0 later this year, features a number of changes. Optional code diagnostics in visual editor.Optional line numbering in code chunks in visual editor.Collapsible code chunks in visual editor.To read about all of the new features and updates available in this release, check out the latest Release Notes. This post highlights some of the improvements in the latest RStudio IDE release 2022.02.0, code-named “Prairie Trillium”.
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